When to Start Feeding Your Cannabis Plants

It’s vital to know when to start feeding your cannabis plants. Get tips on determining the best time to start feeding your plants based on their growth stage.

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The vegetative stage

The vegetative stage of a cannabis plant’s life cycle is when it’s growing and developing its leaves and roots. This stage usually lasts between 3-16 weeks, depending on the strain. During this time, you will need to provide your plants with the proper nutrition, light, and water to ensure they grow healthy and strong. Let’s take a look at what you need to do to care for your plants during the vegetative stage.

Light

The vegetative stage is when your cannabis plants are growing and developing leaves and stems. This is the best time to start feeding them nutrients, as they will be able to use them to produce more leaves and stems. You should feed your plants every 2-3 weeks during this stage, using a nutrient-rich soil or compost.

Temperature

Temperature directly impacts how well your cannabis plants grow. If it’s too cold, growth will be stunted. If it’s too hot, your plants will dry out and may even die.

The ideal temperature for your cannabis plants during the vegetative stage is between 70-80°F (21-27°C). If you can keep your grow room at these temperatures, your plants will thrive.

If the temperature in your grow room gets too high, there are a few things you can do to bring it down.

-Open up a window or door to let in some cooler air.
-Turn on a fan to help circulate the air and keep things cool.
-If you have an air conditioner, now is the time to use it!

If the temperature in your grow room gets too low, there are a few things you can do to raise it.

-Close up any vents or doors that are letting in cold air from outside.
-Turn on a space heater or heat lamp to raise the temperature inside your grow room.

Humidity

One of the most important aspects of growing cannabis is humidity. The vegetative stage is when your plants are actively growing, so you need to make sure they have the proper amount of moisture.

If the humidity is too high, your plants will be more susceptible to mold and mildew. If the humidity is too low, your plants will be more susceptible to stress and drought. The ideal range for cannabis plants is between 40-60%.

You can monitor the humidity in your grow room with a hygrometer. This will help you make sure that your plants are getting the right amount of moisture.

If the humidity in your grow room is too high, you can use a dehumidifier to bring it down to an acceptable level. If the humidity is too low, you can use a humidifier to raise it.

Air circulation

During the vegetative stage, it is important to provide your plants with plenty of air circulation. Good air circulation will help to prevent mold and mildew from forming on your plants. You can provide good air circulation by using a fan in your grow room or by opening a window.

In addition to providing good air circulation, you will also need to water your plants regularly during the vegetative stage. Water your plants when the soil feels dry to the touch. Be sure to water deeply, so that the water reaches the roots of the plant.

The flowering stage

The flowering stage is when your cannabis plants start to produce buds. This is the most important stage of the plant’s life cycle, and it’s when you need to start feeding your plants nutrients. The flowering stage lasts for about 6-8 weeks, and during this time, your plants will need extra nutrients to produce large, healthy buds.

Light

Cannabis plants need lots of light during the flowering stage. The best way to provide lots of light is to use high-intensity discharge (HID) lights. HID lights come in two main types: metal halide (MH) and high-pressure sodium (HPS). Both types of lights work well for growing cannabis. MH lights are good for the vegetative stage, while HPS lights are good for the flowering stage. If you can only afford one light, get an HPS light. You can always use it for both the vegetative and flowering stages by using a different kind of bulb for each stage.

Temperature

The ideal temperature for cannabis plants during the flowering stage is between 68-77°F (20-25°C). If the temperature exceeds 86°F (30°C), your plants may begin to wilt or stop growing altogether. If the temperature drops below freezing, your plants will die.

To ensure that your plants always have the perfect temperature, invest in a quality thermometer and keep an eye on the temperature in your grow room or grow tent. If the temperature gets too high, you can use fans to cool things down. And if the temperature gets too low, you can use a space heater to warm things up.

Humidity

Relative humidity (RH) is the amount of water vapor in the air compared to the amount of water vapor the air can hold at a certain temperature. Vapor pressure deficit (VPD) is the difference between the amount of water vapor in the air and the amount of water vapor the air can hold.

To put it simply, when RH is high, VPD is low, and vice versa. For cannabis plants, you want a VPD of around 0.5–1.5 kPa. This range will differ depending on your grow environment (indoors, outdoors, greenhouse, etc.), but as long as your VPD is within this range, your plants should be fine.

If RH is too high, your plants will experience something called “transpiration stress.” This means that your plants are losing more water through their leaves than they are taking in through their roots, which can lead to wilting and stunted growth. On the other hand, if RH is too low, your plants will experience something called “osmotic stress.” This means that your plants are not able to take in enough water through their roots to meet their needs, which can also lead to wilting and stunted growth.

Air circulation

To ensure a good air circulation, place your fan so that it pulls the air from one side of the room and blows it out the other. This will ensure that all the plants get an equal amount of fresh air. Make sure that the fan is not pointing directly at the plants, as this can cause them to dry out.

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